a.) How many coulombs are required to plate a layer of chromium metal 0.25 mm thick on an auto bumper with a total area of 0.32m^2 from a solution containing chromium (III) ions? The density and atomic weight of chromium metal is 7.20 g/cm^3 and 52 g/mol, respectively.

b.) what current flow in amperes is required for this electroplating if the bumper is to be played in 15 minutes?

c.) If the external source has an emf of +6.0 V and the electrolytic cell is 65% efficient, how much electrical power in kW is expended to electroplate the bumper?

HINT: Use 96480 C= 1 mol e- and express the final answer in 3 decimal places.