Only if the surface area is big enough. If you only have 1 square inch plates, even a complete vacuum would only net you 14.7 lbs of force - something most peop

Only if the surface area is big enough. If you only have 1 square inch plates, even a complete vacuum would only net you 14.7 lbs of force - something most people could separate with their hands. But 10 inch side-length plates would already be impossible to separate for almost all humans, even at half atmospheric pressure between the plates.