Yes, there is a point at which no more sodium and chloride ions will dissolve in a solution. This point is called the saturation point. When a solution is saturated, it means that it cannot dissolve any more solute without becoming supersaturated.

The saturation point of a solution depends on several factors, including the temperature, pressure, and the nature of the solute and solvent. In general, the higher the temperature, the more solute will dissolve in a solution. The higher the pressure, the more gas will dissolve in a solution. And the more polar the solvent, the more ionic solutes will dissolve in it.

When a solution is saturated, the dissolved solute is in a state of equilibrium with the undissolved solute. This means that the rate at which the solute is dissolving is equal to the rate at which it is precipitating out of the solution.

If more solute is added to a saturated solution, it will simply precipitate out of the solution until the concentration of the solution returns to the saturation point.