1. The problem statement, all variables and given/known data A plastic tube 25m long and 4cm in diameter is dipped into a silver solution, resulting in a layer of silver being deposited 0.1mm think uniformly over the outer surface of the plastic tube. The coated tube is then connected across a 12V battery. Calculate the current. 2. Relevant equations Current/Resistance equations that are time invariant 3. The attempt at a solution I THINK that I need to find the current density in order to solve this problem, however I cannot think of a way to find it. I also thought about some way to do this by finding the resistance but you need the resistivity of silver. I could look on line but the value isn't provided in my book or in the homework set so I thinking that I'm not supposed to just look-up the resistivity of silver.