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+//Example 3.4 // thickness of copper deposited
+clc;
+clear;
+close;
+//given data :
+A=0.00025;//in m^2
+D=8900;//in kg/m^3
+Z=32.95*10^-8;//in kg/C
+I=1;//in A
+t=100*60;//in seconds
+m=Z*I*t;//in kg
+v=m/D;
+T=(v/A)*10^3;
+disp(T,"thickness of copper deposited,T(mm) = ")