A Steel Spoon Is To Be Electroplated With Silver ,how Long Should A Current Of 1.5A Be passed though a silver nitrate solution in order to deposit 54g of silver metal on the spoon?

Answer 1

moles Silver=54/107.9=.5 moles
electrons in .5 moles=.5*avagnumber.

current*time=totalcharge=.5*avagnumber*chargeperelectron
time= .5*avanumber*1.6e-19/1.5 seconds

Answer 2

What mass of copper will be deposited froma solution of copper (2)sulphate when a current of 7.5A is passed through for 1 minute and 40 second