Chromium plating is applied by electrolysis to objects suspended in a dichromate solution,...

Chromium plating is applied by electrolysis to objects suspended in a dichromate solution, according to the following (unbalanced) half-reaction:

How long (in hours) would it take to apply a chromium plating 1.0 X 10−2 mm thick to a car bumper with a surface area of 0.25 nr in an electrolytic cell carrying a current of 25.0 A? (The density of chromium is 7.19 g/cm3.)