Using 2.5 Amperes, pt electrode , and 112 ml gas generated.

How many charges flow?

Cl2 gas generated in anode

Cu (s) formed in chatode

Can i assume 112 ml at STP ?

If no other information is given that's better than nothing.

112 ml Cl2 means 0.05 moles of Cl2 means involved 0.05 F electrons.

No. You are on a right track, but you made two errors. One is just a simple math, the other is related to the reaction equation.

1 F requires 96500 charges

Not "charges", coulombs. Just like you don't say water boils at 100 temperatures nor Moon is 384 thousands distances from Earth. Coulomb is a charge unit just like kilometer is a distance/length unit, and degree (be it Celsius, or Fahrenheit) or Kelvin are units of temperature.

Means 0.05 F requires 4.825 C

Is it true?

You not only managed to propagate all previous mistakes in your calculations (that would be understandable) but you again failed at math.