is the reaction between Copper sulfate and zn exothermic or endothermic and does that involve the activity series?

Answer 1

Yes, it involves the activity series. The reaction is
Zn + CuSO4 ==> ZnSO4 + Cu

Here is a site you can find delta H formation values.
https://www.delsearegional.us/academic/classes/highschool/science/chemistry/firstyear/reference/referencesheets/heats.pdf
dHrxn = (n*dH products) - (n*dH reactants).
I believe dHrxn is negative which makes it exo?/endo?/thermic

Answer 2

Exothermic