The paper will not dissolve, it may get bleached and fall apart, the paper can be filtered from the gold chloride solution, to remove the remaining gold chloride from the paper rinse the filtered pulp, the pulp will also help to filter the solution, giving a place for insoluble salts and crude to stick to.
This trick of adding paper or pulp to your filtering of solutions can oftentimes be helpful in make filtering easier or more efficient.
