Main Question or Discussion Point
Well, what do you think? And why do you think what you think?
Approximately the same number as there are hits to the Google query "How many atoms in a sheet of paper thickness".Well, what do you think? And why do you think what you think?
My first thoughts too: 'paper' is just too vague. Perhaps with more specifics, the maths would be as simple as @Nugatory shows.Care to refine your question? We have too many variables here to give a decent answer.