We will see that the charge is -7.53*10^{-3} uC.
Here we know how many electrons you pick up, so we just need to find what is the charge of a single electron.
We know that the charge of an electron is:
[tex]e = -1.6*10^{-19} C[/tex]
Where the negative sign is because the electron has a negative charge.
Then a total of 47,010,000,000 electrons has a charge:
[tex]47,010,000,000*(-1.6*10^{-19} C) = -7.52*10^{-9} C[/tex]
But we want this in micro coulombs, remember that:
1 uC = 1*10^(-6) C
Then we can rewrite the charge as:
[tex]-7.52*10^{-9} C =-7.52*10^{-9}*(10^6) \mu C = -7.52*10^{-3} \mu C[/tex]
If you want to learn more about charges, you can read:
https://brainly.com/question/13685680