The original composition is steel not copper, many have been copper plated.
Current pennies (since 1982) are copper-plated zinc, so the answer is it's covered in copper. The penny is 2.5% copper, and 97.5% zinc. See the related links for a history of penny composition over the years.
No. A penny is made out of copper-plated zinc.
Modern US cents are made of copper plated zinc. Starting midway through 1982 the penny switched from bronze to copper plated zinc. So if you have a penny dated 1983-present you for sure have a penny with zinc on the inside.
A 1983 Lincoln cent is actually copper plated zinc, 1982 was the last year for copper pennies. It's just a penny.
All pennies minted after 1982 are made of copper plated zinc.
If you refer to the British 1 Penny and 2 Pence coins, they are currently made from copper-plated steel.
US Coins the last year for a copper (actually bronze) penny is 1982. In 1982 the penny was made as a copper coin and a copper plated zinc coin. You have to weigh them to tell the difference. Bronze cents weigh 3.11 gm and zinc ones weigh 2.5 gm. The penny has remained a copper plated zinc since 1982 however there is talk of changing it again to a copper plated steel coin. In 1943 the Lincoln US cent was steel coated with zinc because the copper was needed for ammunition during the War. In 1944 it went back the copper coin. Today the cost of copper is too high to make a solid copper coin/penny. In fact the cost of stamping/minting the coins and raw materials, the penny and nickel cost more to produce than their face value.
US "pennies" (cents) are made of 97.5% zinc plated with 2.5% copper Canadian and European cents as well as British pennies are made of copper-plated steel.
Modern English 1p coins are made of copper-plated steel. So yes, there is a tiny amount of copper.
Common types of metals that can rust at home include iron, steel, and copper. Iron and steel rust when exposed to moisture and oxygen, while copper can develop a greenish patina called verdigris.
A tiny, tiny amount. It is only plated with copper, it isn't of enough significant value to truly calculate.