Part A:
How many coulombs are required to plate a layer of chromiummetal 0.24 mm thick on an auto bumper with a total area of 0.29 m2from a solution containing CrO2−4? The density of chromium metal is7.20 g/cm3. Express your answer using two significant figures. Q =______ C
Part B:
What current flow is required for this electroplating if thebumper is to be plated in 16.8 s ? Express your answer using twosignificant figures.
