A typical gold bar has dimensions of 82 mm long, 45 mm wide and 16 mm deep. The current price for gold (2020 August 18) is $2007.20 per ounce (mass). a. What is the total surface area, in square inches, of the gold bar? b. Determine how many mL of gold were used to make the gold bar. C. If the density of gold is 19.3 %, what would be the cost of this gold bar? cm