The US Mint produced only copper cents in 1935. If I may, I suggest you examine the coin again to be certain it is a coin from the USA and then post a new question concerning it.
A penny.
A 1944 copper misprint wheat penny is worth 1,000,000 dollars.
There is no such thing as a U.S. silver penny.
A 1936 silver penny typically refers to the 1936 Lincoln penny, which is made of copper and not silver. Its value depends on its condition and mint mark; in average condition, it may be worth around 10 to 25 cents. If the penny is in uncirculated or high-grade condition, it could be worth more, potentially several dollars. Always check with a reputable coin dealer or grading service for a precise valuation.
Copper is the normal metal for 1944 pennies -- it's worth about 2 cents. Now if you had a 1944 made of steel, or a 1943 made of copper, then you might have something. Dan
U.S. pennies have never been made out of silver. On a 1994-D penny, the silver-colored metal below the copper coating is zinc, NOT silver. It's worth one cent.
A "silver penny" is a steel penny. They were minted in 1943, during World War II, because of the copper shortage. To a collector, it may be worth something, yes, but certainly no amount you could retire on.
A penny.
There is no US silver penny dated 2001. Instead, what has happened is someone has stripped off the copper layer of the coin and left the zinc layer which looks silver-ish.
If it is copper, than it is worth thousands of dollars: unless it is a fraud which you can find out by placing it on a magnet. It will stick if it is fake. If your penny is silver colored, if uncirculated, it is worth about a dollar. if circulated, about 25 cents.
1963 COPPER penny is worth half a billion dollars.
The U.S. never minted a silver penny. It would have more than a dime's worth of silver in it. 1983 and later cents are all made of copper-coated steel so you may have a cent where the copper coating was removed with acid (worth only a penny) or was never plated in the first place (worth a significant amount). It would need to be inspected by a dealer who handles error coins.
Alchemy is the only way to turn a penny into silver. But post-1982 cents are zinc coated with a thin layer of copper and it is possible to remove it chemically which gives a silvery appearance. However, such a penny is NOT silver, is NOT worth any more than 1 cent.
A 1957 cent is all copper. The silver part has been coated with some other metal, so this is a damaged coin with no numismatic value.
What you have isn't copper, but you have a steel penny that is starting to rust. In that condition it is only worth about 2-3 cents or so. If uncirculated it might be worth a dollar or two. They are fairly common.
A 1944 copper misprint wheat penny is worth 1,000,000 dollars.
All pennies since 1983 are made almost entirely of zinc, covered with a thin coating of copper. Therefore, what you have is either a zinc penny that did not get its copper coating (worth abuot a dollar), or a normal penny that has been silver plated (no added value). You should be able to determine this by weight. A normal penny will weigh 2.5 grams. So if yours weighs less, then it's missing its copper coating. If it weighs more, then it's been silver plated.