To improve conductivity in the electroplating of automobile bumpers, a thin coating of copper separates the steel from a heavy coating of chromium.   (a) What mass of Cu is deposited on an automobile trim piece if plating continues for 1.25 h at a current of 7.6 A?     (b) If the area of the trim piece is 50.0 cm2, what is the thickness of the Cu coating? (d of Cu = 8.95 g/cm3)

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.