You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How many days will it take to produce a layer of gold 0.140 mm thick (on both sides of the coin) from an Au bath using a current of 0.0200 A? (density of gold = 19.3 g/cm) For the purposes of this problem, you can ignore the edges of the coin