How much is one troy ounce of copper worth?
About 26 cents, but copper is priced by the pound and right now, a pound of it is $3.20. (However, it's usually SOLD by the ton, as most industrial metals are.)
How much is 1 gram of 10K gold worth?
How much is 1 gram of 10K GOLD WORTH? Ok....lets do the math - 1 Troy ounce =31.1034768 Grams (Gold is measured in Troy ounces)and 10k is 41.67 % gold and 58.33% Copper and gold is around $1000 per oz now. $1000 dollars per ounce divided by 31.1 Grams in a Troy ounce = $32 dollars...now divide that because 10k is only 41% gold and 59% Copper....Its about $13.
How many pennies would make a ounce of copper?
It would take nearly five dollars worth of pennies ($4.976). The current US cents weigh 2.5 grams but are only 2.5% copper (plated zinc). This means there is only 1/16 gram of copper in each cent, so it would take 16 to yield a gram of copper and 497.6 pennies to yield a troy ounce of copper. (31.1 grams per troy ounce, compared to 28.35 grams for an avoirdupois ounce)