If a piece of jewelry were electroplated with gold for 25 seconds at 1.5 A how many grams of gold would be plated?

To calculate the grams of gold plated, you first need to determine the total charge passed through the circuit. This requires multiplying the current (1.5 A) by the time (25 seconds), which gives 37.5 coulombs. Knowing the charge and the Faraday constant (96,485 coulombs), you can then convert coulombs to moles and moles to grams to find out the amount of gold plated.