Answer:
Explanation:
First of all we shall calculate mass of copper to be calculated from the formula below.
mass = volume x density
volume = total surface area x thickness of layer
= 12 x 12 x 2 x .01 cm³
= 2.88 cm³
mass = 2.88 x 9 = 25.92 g .
Let time required be t s . .
charge flowing in time t = 1.5 t coulomb.
Given ,
1 coulomb deposits .00033 g of copper
1.5 t deposits .00033 x 1.5 t g of copper
So ,
.00033 x 1.5 t = 25.92
t = 52364 s
= 14.54 hours.
