Electrolysis — Faraday's law
Current × time → mass of deposited metal (electroplating)
Parameters
Metal deposited
Charge: 7 200 Кл
2,13 г
on the cathode
m = M·I·t·η / (n·F), F = 96,485 C/mol, n — ion charge. Copper plating: ~1 g per 30 min at 2 A. Real efficiency 80–95%.