No, it is not possible to prepare an aqueous solution using only solids. An aqueous solution is defined as a solution in which water (H2O) is the solvent. Solids can be dissolved in water to form a solution, but there must be a liquid solvent present, which is water in this case.
In an aqueous solution, the solute (the substance being dissolved) is typically a solid, liquid, or gas, while the solvent is always water. When a solid is added to water, the water molecules surround the individual particles of the solid and effectively separate them from each other. This process is called hydration or dissolution. The resulting mixture is a homogeneous solution.
If you only have solids and no liquids, you won't be able to create an aqueous solution. However, you can still mix solids together to form a solid mixture or blend them in other ways, depending on the specific properties of the solids you are working with.