I have 4320 rolls of tape 2" x 800" what would the total m2 be?

4320 x (2"x 8") = .... then convert to m2

Sorry I won't give you the answer it's good for you to learn it for yourself but the above is how you would work it out. Think about it, find the square inch of 1 roll of tape by multiplying (2"x 8") then multiply that answer by the amount of tape rolls you have.
Now you have the total value for the rolls of tape in square inches, you just need to then convert that value to square meters which you can do easily by searching 'convert inches to meters' and then enter your value.

Good luck!