how many grams of copper can be reduced by applying a 3.00 A current for 16.2 minutes, to a solution containing Cu^(2+) ions?
Coulombs = amperes x seconds = ? Let's estimate that at 3000 C.
We know 63.54/2 = estimated 32 grams Cu will be deposited by 96,485 C. Therefore you will have deposited 32 x 3000/96,485 = ?