According to our current understanding of physics, it is not possible for a particle or object to occupy a volume smaller than the Planck volume or to have a mass greater than the Planck mass.
The Planck units, such as the Planck length, Planck time, and Planck mass, are derived from fundamental constants of nature, such as the speed of light, Planck's constant, and the gravitational constant. They represent the scale at which our current theories of physics break down and quantum gravitational effects become significant.
The Planck length is approximately 1.6 x 10^-35 meters, which is considered to be the smallest meaningful length scale in the universe. Similarly, the Planck mass is about 2.2 x 10^-8 kilograms, and it is considered to be the highest possible mass that can be associated with a particle.
Particles with masses greater than the Planck mass would be expected to exhibit strong gravitational effects, and our current theories of physics, such as general relativity and quantum field theory, are not capable of describing such extreme conditions accurately. Therefore, the behavior of particles or objects at scales smaller than the Planck length or with masses greater than the Planck mass is not well understood and requires a theory of quantum gravity to be properly described.