Could the worlds population live in Texas?

From another website:

"I don't know anything about the claim, but I will do the math for you. Using the square milage you gave for Texas: 1 square mile = 5280 x 5280 square feet = 27,878,400 square feet. So 268,581 square miles = 7,487,608,550,400. For simplicity say 7.5 x 10^12. That divided by 7 x 10^9 is indeed over 1000 square feet per person. So if we made one giant one-story compound over Texas, land, water, and all, we would each get a 1,000 square foot unit."